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Preparation of magnetic and photocatalytic cenosphere deposited with Fe3O4/SiO2/Eu-doped TiO2 core/shell nanoparticles

  • Hui Zhang (a1), Junli Zhang (a1), Runjun Sun (a1) and Yingxue Zhou (a1)
  • Please note a correction has been issued for this article.

Abstract

To obtain a floating and magnetically recyclable photocatalyst, nano-scaled Fe3O4 particles are first deposited on the surface of the KH-550 modified cenosphere under a hydrothermal condition. The Fe3O4 coated cenosphere is then loaded with a layer of globular-flower-like SiO2 particles by a precipitation method. The Fe3O4/SiO2 double-layer structured cenosphere is finally immobilized with TiO2 nanoparticles doped with rare earth element Eu3+ to enhance the photoactivity of TiO2 using titanium sulfate, urea, and polyvinylpyrrolidone by a hydrothermal treatment. The as-prepared cenosphere is systematically characterized by various characterization techniques. The properties of photocatalytic degradation of methylene blue dye are also investigated. Results show that after being doped with 0.1% Eu3+ ions in relation to Ti4+ ions, the photocatalytic degradation efficiency for the Fe3O4/SiO2/Eu-doped TiO2 coated cenosphere is significantly improved under both ultraviolet and visible light irradiations. The saturation magnetization of the Fe3O4/SiO2/Eu-doped TiO2 coated cenosphere increases to some degree.

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Corresponding author

a) Address all correspondence to this author. e-mail: hzhangw532@163.com

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1. Wang, Z.L., Li, G.R., Ou, Y.N., Feng, Z.P., Qu, D.L., and Tong, Y.X.: Electrochemical deposition of Eu3+-doped CeO2 nanobelts with enhanced optical properties. J. Phys. Chem. C 115, 351356 (2011).
2. Sin, J.C., Lam, S.M., Satoshib, I., Lee, K.T., and Mohamed, A.R.: Sunlight photocatalytic activity enhancement and mechanism of novel europium-doped ZnO hierarchical micro/nanospheres for degradation of phenol. Appl. Catal., B 148149, 258268 (2014).
3. Al-Hamdi, A.M., Sillanpaa, M., and Dutta, J.: Photocatalytic degradation of phenol in aqueous solution by rare earth-doped SnO2 nanoparticles. J. Mater. Sci. 49, 51515159 (2014).
4. Liu, H. and Yu, L.X.: Preparation and photoluminescence properties of europium ions doped TiO2 nanocrystals. J. Nanosci. Nanotechnol. 13, 51195125 (2013).
5. Wang, Y.R., Guo, Y.J., Wang, G.J., and Wang, F.: Investigation of Eu-doped mesoporous titania phosphor with enhanced luminescence. J. Nanosci. Nanotechnol. 11, 31623170 (2011).
6. Choi, J., Park, H., and Hoffmann, M.R.: Effects of single metal-ion doping on the visible-light photoreactivity of TiO2 . J. Phys. Chem. C 114, 783792 (2010).
7. Chen, D.M., Zhu, Q., Lv, Z.J., Deng, X.T., Zhou, F.S., and Deng, Y.X.: Microstructural and photocatatlytic properties of Eu-doped mesporous titanium dioxide nanopaticles by sol–gel method. Mater. Res. Bull. 47, 31293134 (2012).
8. Hsiao, R.C., Arul, D.S., Mangalaraj, D., and Juang, R.S.: Influence of Eu3+ doping on the degradation property of TiO2 nanostructures. J. Optoelectron. Adv. Mater. 12, 193198 (2010).
9. Shi, J.W., Cui, H.J., Zong, X., Chen, S.H., Chen, J.S., Xu, B., Yang, W.Y., Wang, L.Z., and Fu, M.L.: Facile one-pot synthesis of Eu, N-codoped mesoporous titania microspheres with yolk-shell structure and high visible-light induced photocatalytic performance. Appl. Catal., A 435436, 8692 (2012).
10. Puskelova, J., Michal, R., Caplovicova, M., Antoniadou, M., Caplovic, L., Plesch, G., and Lianos, P.: Hydrogen production by photocatalytic ethanol reforming using Eu- and S-doped anatase. Appl. Surf. Sci. 305, 665669 (2014).
11. Hirano, M. and Sato, S.: Hydrothermal synthesis of Nb- and Eu-co-substituted nanocrystalline anatase: EuxTi1–2xNbxO2 with photoluminescence and photocatalytic activity: Compositional dependence of multifunctional properties. J. Am. Ceram. Soc. 95, 34083414 (2012).
12. Paul, N. and Mohanta, D.: Effective optoelectronic and photocatalytic response of Eu3+-doped TiO2 nanoscale systems synthesized via a rapid condensation technique. J. Mater. Res. 28, 14711480 (2013).
13. Bianco, A., Cacciotti, I., Fragala, M.E., Lamastra, F.R., Speghini, A., Piccinelli, F., Malandrino, G., and Gusmano, G.: Eu-doped titania nanofibers: Processing, thermal behaviour and luminescent properties. J. Nanosci. Nanotechnol. 10, 51835190 (2010).
14. Yao, S.H., Sui, C.C., and Shi, Z.L.: Preparation and characterization of visible-light-driven europium doped mesoporous titania photocatalyst. J. Rare Earths 29, 929933 (2011).
15. Zhang, C.M., Huo, S.Y., Shen, S.G., Jia, G., and Sun, J.: Controlled hydrolysis synthesis and luminescence properties of uniform TiO2 spheres with different titanium alkoxides. J. Nanosci. Nanotechnol. 13, 44564461 (2013).
16. Tang, J.T., Chen, X.M., Liu, Y., Gong, W., Peng, Z.S., Cai, T.J., Jin, L.W., and Deng, Q.: Europium-doped mesoporous anatase with enhanced photocatalytic activity toward elimination of gaseous methanol. J. Phys. Chem. Solids 73, 198203 (2012).
17. Chi, C.S., Choi, J., Jeong, Y., Lee, O.Y., and Oh, H.J.: Nitrogen and europium doped TiO2 anodized films with applications in photocatalysis. Thin Solid Films 519, 46764680 (2011).
18. Ding, S.J., Huang, F.Q., Mou, X.L., Wu, J.J., and Lu, X.J.: Mesoporous hollow TiO2 microspheres with enhanced photoluminescence prepared by a smart amino acid template. J. Mater. Chem. 21, 48884892 (2011).
19. Hirano, M. and Sato, S.: Effect of treatment temperature on the hydrothermal formation, phase, and photoluminescence property of Nb- and Eu-co-substituted anatase-type titania nanocrystals. Mater. Lett. 83, 186188 (2012).
20. Wei, Q.F. and Chen, Y.J.: One-step hydrothermal synthesis of TiO2 nanowires and their photocatalytic activities. Chem. J. Chin. Univ. 32, 24832489 (2011).
21. Wang, B., Li, Q., Wang, W., Li, Y., and Zhai, J.P.: Preparation and characterization of Fe3+-doped TiO2 on fly ash cenospheres for photocatalytic application. Appl. Surf. Sci. 257, 34733479 (2011).
22. Zhan, J.C., Zhang, H., and Zhu, G.Q.: Magnetic photocatalysts of cenospheres coated with Fe3O4/TiO2 core/shell nanoparticles decorated with Ag nanopartilces. Ceram. Int. 40, 85478559 (2014).
23. Lu, W.S., Shen, Y.H., Xie, A.J., and Zhang, W.Q.: Green synthesis and characterization of superparamagnetic Fe3O4 nanoparticles. J. Magn. Magn. Mater. 322, 18281833 (2010).
24. Anastasescu, C., Anastasescu, M., Teodorescu, V.S., Gartner, M., and Zaharescu, M.: SiO2 nanospheres and tubes obtained by sol–gel method. J. Non-Cryst. Solids 356, 26342640 (2010).
25. Leostean, C., Stefan, M., Pana, O., Cadis, A.I., Suciu, R.C., Silipas, T.D., and Gautron, E.: Properties of Eu doped TiO2 nanoparticles prepared by using organic additives. J. Alloys. Compd. 575, 2939 (2013).
26. Mezzi, A., Kaciulis, S., Cacciotti, I., Bianco, A., Gusmano, G., Lamastra, F.R., and Fragala, M.E.: Structure and composition of electrospun titania nanofibres doped with Eu. Surf. Interface Anal. 42, 572575 (2010).
27. Feng, X., Yang, L., Zhang, N.C., and Liu, Y.L.: A facile one-pot hydrothermal method to prepare europium-doped titania hollow phosphors and their sensitized luminescence properties. J. Alloys. Compd. 506, 728733 (2010).
28. Lin, X., Guan, Q.F., Zou, C.J., Liu, T.T., Zhang, Y., Liu, C.B., and Zhai, H.J.: Photocatalytic degradation of an azo dye using Bi3.25M0.75Ti3O12 nanowires (M = La, Sm, Nd, and Eu). Mater. Sci. Eng., B 178, 520526 (2013).
29. Lei, Y., Zhang, L.D., Meng, G.W., Li, G.H., Zhang, X.Y., Liang, C.H., Chen, W., and Wang, S.X.: Preparation and photoluminescence of highly ordered TiO2 nanowire arrays. Appl. Phys. Lett. 78, 11251127 (2001).
30. Yu, J.C., Yu, J., Ho, W., Jiang, Z., and Zhang, L.: Effects of F- doping on the photocatalytic activity and microstructures of nanocrystalline TiO2 powders. Chem. Mater. 14, 38083816 (2002).
31. Li, D., Haneda, H., Labhsetwar, N.K., Hishita, S., and Ohashi, N.: Visible-light-driven photocatalysis on fluorine-doped TiO2 powders by the creation of surface oxygen vacancies. Chem. Phys. Lett. 401, 579584 (2005).
32. Cheng, K., Zhu, Y.F., Weng, W.J., Lin, J., and Wang, H.M.: Biocompatible Eu-doped TiO2 nanodot film with in-situ protein adsorption characterization property. Thin Solid Films 584, 912 (2015).
33. Agorku, E.S., Kuvarega, A.T., Mamba, B.B., Pandey, A.C., and Mishra, A.K.: Enhanced visible-light photocatalytic activity of multi-elements-doped ZrO2 for degradation of indigo carmine. J. Rare Earths 33, 498506 (2015).
34. Chen, Y.L., Cao, X.X., Lin, B.Z., and Gao, B.F.: Origin of the visible-light photoactivity of NH3-treated TiO2: Effect of nitrogen doping and oxygen vacancies. Appl. Surf. Sci. 264, 845852 (2013).
35. Wang, R.F., Wang, F.M., An, S.L., Song, J.L., and Zhang, Y.: Y/Eu co-doped TiO2: Synthesis and photocatalytic activities under UV-light. J. Rare Earths 33, 154159 (2015).
36. Liu, F. and Jiang, Z.Y.: First-principles study on the electronic and optical properties of the (Eu,N)-codoped anatase TiO2 photocatalyst. Acta. Phys. Sin-Ch. Ed. 62, 193103–1–5 (2013).
37. Li, C., Hou, Q.Y., Zhang, Z.D., and Zhang, B.: First-principles study on the doped concentration effect on electron lifespan and absorption spectrum of Eu-doping anatase TiO2 . Acta Phys. Sin. 61, 077102–1–6 (2012).
38. Yao, S.H., Zhang, Y.X., Shi, Z.L., and Wang, S.F.: An investigation on synthesis and photocatalytic properties of Eu-doped anatase TiO2 coated magnetite. J. Indian Chem. Soc. 90, 955962 (2013).
39. Franco, A. Jr., Pessoni, H.V.S., and Soares, M.P.: Room temperature ferromagnetism in Eu-doped ZnO nanoparticulate powders prepared by combustion reaction method. J. Magn. Magn. Mater. 355, 325330 (2014).

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Preparation of magnetic and photocatalytic cenosphere deposited with Fe3O4/SiO2/Eu-doped TiO2 core/shell nanoparticles

  • Hui Zhang (a1), Junli Zhang (a1), Runjun Sun (a1) and Yingxue Zhou (a1)
  • Please note a correction has been issued for this article.

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